Fanning-mill



2 Sheets-Sheet 1.

(No Model.)

PANNING MILL.

No. 321,563. Patented July 7, 1885.

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2 Sheets-Sheet 2. W. S. WOOD.

FANNING MILL.

(No Model.)

No. 321,563. Patent ed July 7. 1885.

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UNITED STATES Parent. @rrrcm WALTER S. WOOD, OF KALAMAZOO, MICHIGAN.

FANNlNG-MILL.

SPECIFICATION forming part of Letters Patent No. 321,563, dated July 7, 1885.

Application filed February 3, 1885.

To all whom it may concern.-

Be it known that I, XVALTER S. XVooD, a citizen of the United States, residing at Kalamazoo, county of Kalamazoo, and State of Michigan, have invented certain new and useiul Improvements in FanningMills, of which the following is a specification.

My invention relates to new and useful devices for operating the shoes of fanning-mills or other grain-separators.

The object of my invention is to provide means for agitating grain while passing over the screens sufficiently to prevent clogging. I attain this object by the mechanism illustrated in the accompanying drawings, forming a part of this specification, in which- Figure 1 is a side elevation of a fanningmill, a portion of the side being broken away for the purpose of showing my improvements. Figs. 2 and 3 are details of the device for latorally oscillating the lower shoe. Fig. 4 is a perspective view of the rear end of lower shoe, showing mechanism for oscillating the same. Fig. 5 is a detail of the front end of lower shoe, showing mechanism for jarring the same, also showing rod by which it receives alongitudinal motion. Fig. 6 is an elevation of a portion of a fanning-mill, showing the registers for operating the blast-directors. Fig. 7 is a perspective view of upper shoe, showing means for operating the same. Fig. 8 is an inverted plan view of perforated plate or rack for receiving projections on jarringwheel.

Similar letters refer to similar parts throughout the several views.

- D D, Fig. 1, represent the body of an ordinary fanning-mill; F, the upper shoe; ]3, the

lower shoe; P, a rock-shaft extending through the mill, having arms at each end extending upward, one of which is shown at 15, Figs. 1 and 7. Said arms are for pivotal] y supporting and giving said shoe an oscillating longitudinal motion. The shoe is also pivoted to the mill by means of straps, as shown at 1), Figs. 1 and 7. Said rock-shaft receives its motion by means of rod r, one end of which is attached to arm t and the other end to fan-shaft crank. The upper ends of arms 15 are provided with slots of peculiar shape, as shown at t, for the purpose of vertical adjustment of said (So model.)

shoe, therebyinclining the screens contained therein to or from a horizontal position. The rock-shaft is also provided with an army, extending downward at or near its center,having the rod 8 pivoted thereto and extending forward and attached to the front or lower end of lower shoe, B, as shown at h, Fig. 5, for the purpose of operating said shoe in a longitudinal direction. Said shoe is supported at its front end by means of the wheel it, having teeth with round or ball ends engaging with a perforated plate or rack, (shown at 1,Figs.l,5, and 8,) having a strip of rubber inserted between said plate and the under side of the shoe, as shown at n, Fig. 5, for the purpose of making the jarring device nearly noiseless. The perforated plate or rack is provided with flanges, as shown at I), Fig. 8, for the purpose of keeping the lower end of the shoe in proper position. The rear end of lower shoe is supported and oscillated or tilted laterally by means of a Y-shaped support having one of its supporting-prongs bent forward and the other backward, as shown at 0, Figs. 1 and 4, said Y-shaped support being pivoted to strap 0 at f, thereby allowing a longitudinal and lateral oscillating motion to said shoe. The strap 0 is provided with a slot, as shown in Figs. 2, 3, and 4, and is secured to the rear girt of mill by means of thumb-screw m, Fig. 1, for the purpose of vertical adjustment of rear end of said shoe. supported and oscillated or tilted laterally by means of the Y-shaped support a, which is pivoted or hinged to strap 0, as shown at f, Figs. 2, 3, 4, said strap having a vertical slot located below its point of pivoting for the vertical adjustment of the rear end of said shoe, and it is secured to the rear girt of the mill by means of a thumb-screw, as shown at m,

Fig. 1. The Y-shaped support is provided.

with prongs bent in different directions and supporting said shoe at each side of its longitudinal center. It will be observed by referring to Figs.1,2, 3,4 that the reciprocating mo tion given to said shoe by rod 8 causes the prongs of the Y-shaped support to take nearly vertical and horizontal positions alternately. Therefore, when one prong is near a vertical position, the side of the shoe supported by said prong is held up, while the other prong The rear end of lower shoe is.

is near a horizontal position and the side of the shoe which it supports is down, and vice versa, thereby permitting a lateral oscillating motion of the said shoe. It will be observed that the rear end 'of said shoe has a slight longitudinal oscillating motion over the pivot f when reciprocated by rod s. The circular fanchamber H is provided with folding doors R, or directors of the wind-blast, pivoted so as to open outward, and are operated by means of registers or indexes secured to the outside of the mill, as shown at m, Fig. 6. By this means the fan-chamber H may be closed entirely, ormay be slightly opened when a light blast is required for cleaning light seed, or the blast may be directed in different directions, as may be required in cleaning different kinds of grain. To these devices, however, I lay no claim.

I am. aware that prior to my invention fanning -mills and separators have been made with rock-shafts for operating the shoes. I therefore do not claim such a combination, broadly; but

What I do claim as my invention, and desire to secure by Letters Patent, is

1. In combination, in a fanning mill, the longitudinally and laterally oscillating shoe B, the rock-shaft provided with the arm 0*, the rod 3, the Y-shaped support provided with prongs bent in different directions,and the adjustingstrap c,for permitting longitudinal oscillating motion and vertical adjustment of said shoe, as shown and described.

2. In combination with a grain separator shoe and means for moving the same, the perforated plate or rack y, the round or balltoothed wheel a, and the rubber inserted between the said plate or rack and the bottom of the shoe for deadening noise, as shown and described.

WALTER S. WOOD.

WVitnesscs:

WM. A. LUBY, JAMES. K. PERKINS. 

